Nozzle Fan A nozzle fan cools the extruded filament to solidify layers quickly, enhancing overhangs, bridges, and fine details. It prevents warping, stringing, and drooping by controlling cooling rates. Adjustable fan speeds allow for material-specific settings—higher speeds for PLA and lower speeds for ABS to avoid cracking. Dual fan setups improve airflow and uniform cooling. Some 3D printers feature smart fans that automatically adjust speeds based on layer complexity or print speed. Proper nozzle fan settings optimize print quality. |